Ultrasound Assessment during the First Trimester

Sonography Fundamentals

Materials Included

Text
Video
Anatomy
Simulation
Quiz

Obstetric sonography has become an indispensable tool in the identification of pregnancy and the care of pregnant women.

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Obstetric sonography has become an indispensable tool in the identification of pregnancy and the care of pregnant women. This module teaches you how to prepare for and perform a first trimester ultrasound examination. The interactive simulator provides three different scan scenarios that cover different aspects of the first trimester scan protocol. It enables students and practitioners to build or refresh knowledge and cognitive skills, and offers a safe online practice environment so you can prepare for the real clinical world. This module is ideal if you are studying for the American Registry for Diagnostic Medical Sonography (ARDMS) registry exams.

You’ll learn

to practice, perfect and test your skills in performing an ultrasound scan during the first trimester
to better visualize and understand the key structures and components of the embryo at various stages of development during the first trimester, with our 3D model and illustrations
methods for calculating gestational age during the first trimester of pregnancy
how to obtain images of the gestation sac, uterus, yolk sac, and embryo via a transabdominal scan, including images of the embryonic heart using m-mode assessment
how to obtain images of the uterus, endometrium and gestation sac via an endovaginal scan
how to differentiate normal and abnormal sonographic appearances during the first trimester
how to differentiate between intrauterine, ectopic, heterotropic, and multiple pregnancies, including signs, symptoms, and locations
much more (see “content details” for more specific information).

Introduction

Step 1 - Preparation

Step 1.1 - Equipment preparation

Step 1.2 - Patient preparation

Step 1.3 - Operator preparation

Step 2 - Expose the lower abdomen and apply the gel

Step 3 - Select the transducer

Step 4 - Commence the first trimester scanning protocol

Step 4.1 - Patient position

Step 4.2 - Scan plane

Step 4.2.1 - Transabdominal scan plane

Step 4.2.2 - Endovaginal scan plane

Step 4.3 - Standard first trimester protocol image requirements

Step 4.3.1 - Maternal uterus, ovaries, and adnexae

Step 4.3.2 - Gestation sac

Step 4.3.3 - Embryo

Step 4.3.4 - Placenta

Step 4.4 - Annotations required

Step 4.5 - Troubleshooting

Step 5 - Scan the pregnant pelvis transabdominally

Step 5.1 - Scan the uterus in longitudinal and transverse planes

Step 5.2 - Scan the ovaries and adnexae in longitudinal and transverse planes

Step 5.3 - Scan the gestation sac and yolk sac

Step 5.3.1 - Scan the gestation sac

Step 5.3.2 - Scan the yolk sac

Step 5.3.3 - Multiple pregnancy and chorionicity

Step 5.4 - Scan the embryo in longitudinal and transverse planes

Step 5.4.1 - Scan for crown-rump length and gestational age

Step 5.4.2 - Scan the embryonic heart

Step 5.4.3 - Scan the embryonic abdomen and pelvis

Step 5.4.4 - Scan the fetal cranium

Step 5.4.5 - Scan the embryonic spinal column

Step 5.4.6 - Multiple pregnancy: scan for chorionicity

Step 6 - Scan the pregnant pelvis endovaginally

Step 6.1 - Scan the uterus in longitudinal and coronal planes

Step 6.2 - Scan the adnexae and ovaries in coronal and longitudinal planes

Step 6.3 - Scan the gestation sac and yolk sac in longitudinal and coronal planes

Step 6.4 - Scan the embryo/fetus in longitudinal and transverse planes

Step 6.4.1 - Scan for crown-rump length and gestational age

Step 6.4.2 - Scan the embryonic heart

Step 6.4.3 - Scan the embryonic abdomen and pelvis

Step 6.4.4 - Scan the fetal cranium

Step 6.4.5 - Scan the embryonic spinal column

Step 6.4.6 - Multiple pregnancy

Step 7 - Complete the procedure

List and describe the sequence of embryonic development.
Identify the anatomy of early intrauterine pregnancy on diagrams and sonograms.
Describe how to obtain a patient history and correlate the information with laboratory results.
Recognize and differentiate between intrauterine, ectopic, heterotropic, and multiple pregnancies, including signs, symptoms, and locations.
Describe and demonstrate methods for calculating gestational age during the first trimester of pregnancy.
Describe and recognize on images the features of various types of failed pregnancy in the first trimester.
Describe and recognize on images embryonic abnormalities in the first trimester.
Describe and recognize on images normal and abnormal amniotic fluid in the first trimester.
Describe and recognize on images normal and abnormal placental anatomy in the first trimester.
Explain the sonographic features of fetal demise of the first trimester.
Describe and recognize on images first trimester abnormalities of the uterus and adnexae.
Describe a nuchal translucency measurement.
Follow relevant protocols when scanning.
Define and use related medical terminology.
Explain the Patient Privacy Rule (HIPAA) and Patient Safety Act.

The SIMTICS modules are all easy to use and web-based. This means they are available at any time as long as the learner has an internet connection. No special hardware or other equipment is required, other than a computer mouse for use in the simulations. Each of the SIMTICS modules covers one specific procedure or topic in detail. Each module contains:

an online simulation (available in Learn and Test modes)
descriptive text, which explains exactly how to perform that particular procedure including key terms and hyperlinks to references
2D images and a 3D model of applied anatomy for that particular topic
a step by step video demonstration by an expert
a quiz
a personal logbook that keeps track of all the modules the learner has studied and how long